function run(){
	var time = new Date();//获取系统当前时间
	var year = time.getFullYear();
	var month = time.getMonth()+1;
	var date= time.getDate();//系统时间月份中的日
	var day = time.getDay();//系统时间中的星期值
	var hour = time.getHours();
	var minutes = time.getMinutes();
	var seconds = time.getSeconds();
	if(month<10){
		month = "0"+month; 
	}
	if(date<10){
		date = "0"+date; 
	}
	if(hour<10){
		hour = "0"+hour; 
	}
	if(minutes<10){
		minutes = "0"+minutes; 
	}
	if(seconds<10){
		seconds = "0"+seconds; 
	}
	//var newDate = year+"年"+month+"月"+date+"日"+week+hour+":"+minutes+":"+seconds;
	document.getElementById("show").innerHTML = year+"/"+month+"/"+date+"&nbsp;&nbsp;"+hour+":"+minutes+":"+seconds;
	setTimeout('run()',1000);
 }
  
 run();